Tap or valve



April 9, 9 F. o. HQRSTMANYN 2.196.798

TAP on VALVE 1 Filed March 23, ,1937

#Nhwk f l/W E/YTOEL F'- CZHOIESTMHNA/ Y Patented Apr. 9, 194

UNITE TAP on VALVE 7 Frederick Otto Horstmann, Bath, England Application March 23, 1937, Serial No. 132,609 In Great Britain June 15, 1936 i 1 Claim.

This invention has reference to taps or valve devices wherein the valve is screwed or otherwise positively clamped down to its seating, and it is particularly applicable to water taps.

According to the invention a screw-down or like positively engaged tap or valve device includes a valve and seating made of hardened incorrodible metal, the'valve consisting of a dish shape disc having projecting from its convex side a stern which removably fits in a socket of the valve operating barrel, the edge of the-valve coacting with the seating to spread radially there:- over as pressure is applied to the convex side of the valve by the operating barrel.

Preferably the valvemember and the seating are made of stainless steel, the use of similar hi'-- ing a fiat face with which the periphery of the r dished valve member coacts and on the opposite face thereto a projection which fits in the existing fiuid passage of the tap. The valve engaging face of the seating maybe surrounded by a. shroud in the form of an upstanding flange having parallel or tapering interior sides with or without suitable slots constituting ports which permit the passage of fluid when the valve is raised from it's seating to open the main fluid port. The advantage of the shroud is that it enables the spread of the dished springy valve when pressed on to its seating to close the main fluid port, to form an additional radial seal against the escape of fluid. However, for many purposes, the shroud will not be required and efficient port sealing will be obtained by the simple flat disc seat-' mg. I i v As an optional provision, the invention may include a resilient connection between the valve and the tap barrel so as to impart an improved Thus, for exfeel to the actuating handle. ample, in the practical embodiment of the valve above referred to thebottom of the tap barrel may have a springy disc of dish shape the periphcry of which presses on the back of the valve.

In order that the construction and the function of the valve member according to the invention and its seating may be clearly understood, refer ence will now be made to the accompanying drawing which shows the application of the improved valve member and seating to a water tap of the screw-down type.

In the drawing:

Figure l is a sectional elevation of the tap incorporating the valve member and seating;

Figure 2 is a sectional detail of the valve member cooperating with a seating having a shroud;

disc I dishedj'as shown and provided at the back i with a stem 2 which fits loosely in the existing socket 3 formed in the-screw-down barrel d of thetapflfi. In use the periphery of the dished valve I coac'ts with the flat face6 of a metal seating 1 which in Figures 1 and 3 is a simple dischaving a main fiuicl'port 8 surrounded on the face opposite to thatwith which the valve coactsby a projection 9. This projection 9 is fitted securely in the existing fiuid'passage Ill of the tap as shown. The operation of the valve will be clear from the drawing; in the closed position,

shown, the periphery of the springy valve is pressed tightly against the seating, the dish shape having been flexed to spread radially across the seating as thebarrel is screwed down,.thus.

forming an eificient seal, and maintaining a clean burnished surface of the seating and a bright.

water-sealing edge tothe dish-valve. .When the barrel is unscrewed, the dished valve flexes inwardly to its normal shape and under the pressure of water. rises with the barrel to open the main fiuid'port 8. I

In Figure 2* the disc seating! issurrounded by an upstanding flange II forming a shroud, the

edge of the dished valve l in the closed position pressing tightly against the interior side walls of the seating to constitute an additional radial seal against. the escape of fluid. In the example illustrated the upper part of the interior side walls of the shroud tapers from the top so that a wider passage at the top is provided for the flow of water when thevalve isopen, and inv addition auxiliary fluid portssuch-as l2 are formed in the side walls,

Figure 3 shows one practical and simple meth- 0d. of. impartingan improved feel to the barrel.

Between the bottom of the barrel t and the valve i, is a springy metal disc of dish shape the periphery of which presses on the back of the Y for cooperation with said seat, and a, dished disk spring interposed between the endof the barrel and said disk valve through which said barrel operates to press said disk valve to said seat.

FREDERICK O'ITO HORS'IMANN. 

